Fundamental Exercise H.11

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Kristina Nguyen 1C
Posts: 29
Joined: Thu Jul 27, 2017 3:00 am

Fundamental Exercise H.11

Postby Kristina Nguyen 1C » Mon Oct 02, 2017 5:07 pm

In the exercise, it is asked that you balance two stages of a reaction. I have balanced the first stage, but I am confused on what to use as my reactants for the second stage... Do I include the stoichiometric coefficient from the first balanced equation?

Ethan-Van To Dis2L
Posts: 50
Joined: Fri Sep 29, 2017 7:05 am

Re: Fundamental Exercise H.11

Postby Ethan-Van To Dis2L » Mon Oct 02, 2017 6:04 pm

No you would start "fresh." So in the answer Fe3O4 had a stoichiometric coefficient of 2, but in part 2 you wouldn't start with 2 Fe3O4. You would simply start with Fe3O4 + CO etc.

Ramya Lakkaraju 1B
Posts: 67
Joined: Fri Sep 29, 2017 7:03 am

Re: Fundamental Exercise H.11

Postby Ramya Lakkaraju 1B » Thu Oct 05, 2017 10:35 pm

Hi, the reason you would start "fresh" is that when you balance an equation, you are simply trying to make sure that for that particular equation, the two sides are in fact equal to each other. When you start with another equation, you do not include any of the stoichiometric coefficients from previous equations because you have to balance the new one from scratch. So yes, you would not include the stoichiometric coefficient of 2 when starting the second stage.

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